The Google-led Android mobile operating system is getting a new Facebook application today, according to a number of Android-focused blogs. Facebook has been planning a mobile-themed event for this evening, so it appears word got out early. While I’m not currently seeing the app in the Android Market app store, screenshots (including the ones you see here) are already public. Update: You can find it on Facebook here, although it still isn’t showing up in the Market.

Facebook has confirmed the launch of the new app with us. Here’s what the official blurb about the app says, according to Android Guys:

Facebook for Android™ makes it easy to stay connected and share information with friends. You can share status updates from your home screen, check out your news feed, look at your friends’ walls and user info. Share photos from your phone and can even look up up to 125 friends’ phone numbers from the home screen.

We’ll be taking a closer look at it tonight.

Rumors have been going around for months about a Facebook-Android app; some have wondered about the partnership given the competitive positions of Google and Facebook.

Meanwhile, Facebook has also been upping its mobile effort. Last week, it released Facebook Connect for mobile web services — and soon, apps. Through Connect, third parties will be able to access user data from Facebook and enable two-way interactions so users can communicate back to the site. At least one third party, social game developer Playfish, has had their own, unofficial implementation of Connect for months.

Facebook has also been building apps for a wide variety of phones and operating systems, including for Nokia’s N97 and the extremely popular iPhone application.